Indeed, Damar, Garak, Tain and Gul Dukat are all very strong characterizations:
Initially only introduced as a tertiary character and one that was little more than a background henchman for Dukat, the character of Damar eventually became the embodiment of the entire Cardassian people. As the ultimate archetype of a true patriot, he believed that everything done in the name of Cardassia was worth doing and he personally relished in the brutal excesses and military conquests of the State. But only near the end, when he realized what a terrible cost such an attitude inflicted, both on his people and to him personally, Damar became the catalyst for the Cardassians to openly rebel against the Dominion. In doing so, he helped his people break free from the centuries-long cycle of aggression that had finally brought their society to ruin. And much like the symbols of our own history who became martyrs in defense of a greater ideal, Damar’s death in defense of the idea that Cardassia could choose its own fate, one that was no longer driven solely by aggression, was not only his attempt at personal redemption, but also redemption for his entire civilization.